Windows 10: Missing MSR partition

Discus and support Missing MSR partition in Windows 10 Installation and Upgrade to solve the problem; I have performed a new installation (with new motherboard, processor and SSD) of Windows 10 Professional (from an installation USB created today using... Discussion in 'Windows 10 Installation and Upgrade' started by Ubtree, Nov 12, 2020.

  1. UBTREE
    Ubtree Win User

    Missing MSR partition


    I have performed a new installation (with new motherboard, processor and SSD) of Windows 10 Professional (from an installation USB created today using the Download Tool on the Microsoft website). The installation appeared to go smoothly, but only the primary partition (containing the operating system) has been created: there is no MSR partition (nor Recovery and System partitions). Is this a problem?

    :)
     
    Ubtree, Nov 12, 2020
    #1
  2. AADITHYE NANDAKUMAR
    Aadithye Nandakumar Win User

    Expanding EFI partition and moving MSR partition.

    I would like to install Mac Os on this device. However I am limited by the size of the EFI partition. Mac Os requires at least 200mb. I have only 100mb. So I resized the Windows partition to leave 100mb unallocated. However I can't extend the EFI partition
    because there is a MSR partition in the way. https://puu.sh/rFbsz/e52c847706.png

    I know both the EFI and MSR partition and very much required partitions for proper functioning and it is better to not mess with it. But I have to get the EFI to 200mb. So how to move the MSR partition. I am pretty familiar with DISKPART or other GUI based
    partition managers.

    https://puu.sh/rFbsz/e52c847706.png
     
    Aadithye Nandakumar, Nov 12, 2020
    #2
  3. DR-525
    DR-525 Win User
    Issues with MSR Partition

    Quick question, Greg: Does the setup.exe file on the Windows Install Media fix the EFI partition, create a new MSR partition, fix the GPT, etc? Sorry if that question was badly worded or incorrect.
     
    DR-525, Nov 12, 2020
    #3
  4. SNOMAN112
    Snoman112 Win User

    Missing MSR partition

    Help with MSR partition on secondary drives

    I have two secondary hard drives that have MSR partitions on them. I want to use them in another setup but dont want conflict if possible because of partitions. I also dont want unneeded partitions. Both drives have partition one as MSR. Do I need to delete
    these, if so, do I extend my main partition? Any help is appreciated. Thank you for your time.
     
    Snoman112, Nov 12, 2020
    #4
Thema:

Missing MSR partition

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